index.html.eex

<section class="phx-hero">
  <h1>Welcome to Awesome App!</h1>
  <p>To get started, login to your Google Account: <p>

  <div style="display:flex; flex-direction:column; width:368px; margin-left:133px;">
    <link href="https://fonts.googleapis.com/css?family=Roboto&display=swap">

    <a href="<%= @oauth_google_url %>"
      style="display:inline-flex; align-items:center; min-height:50px;
        background-color:#4285F4; font-family:'Roboto',sans-serif;
        font-size:28px; color:white; text-decoration:none;
        margin-top: 12px">
        <div style="background-color: white; margin:2px; padding-top:18px; padding-bottom:6px; min-height:59px; width:72px">
        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 533.5 544.3"
          width="52px" height="35" style="display:inline-flex; align-items:center;" >
          <path d="M533.5 278.4c0-18.5-1.5-37.1-4.7-55.3H272.1v104.8h147c-6.1 33.8-25.7 63.7-54.4 82.7v68h87.7c51.5-47.4 81.1-117.4 81.1-200.2z" fill="#4285f4"/>
          <path d="M272.1 544.3c73.4 0 135.3-24.1 180.4-65.7l-87.7-68c-24.4 16.6-55.9 26-92.6 26-71 0-131.2-47.9-152.8-112.3H28.9v70.1c46.2 91.9 140.3 149.9 243.2 149.9z" fill="#34a853"/>
          <path d="M119.3 324.3c-11.4-33.8-11.4-70.4 0-104.2V150H28.9c-38.6 76.9-38.6 167.5 0 244.4l90.4-70.1z" fill="#fbbc04"/>
          <path d="M272.1 107.7c38.8-.6 76.3 14 104.4 40.8l77.7-77.7C405 24.6 339.7-.8 272.1 0 169.2 0 75.1 58 28.9 150l90.4 70.1c21.5-64.5 81.8-112.4 152.8-112.4z" fill="#ea4335"/>
        </svg>
      </div>
      <div style="margin-left: 27px;">
        Sign in with Google
      </div>
    </a>
  <div>

</section>